# Project 6637 — Ground Based Anti-Ship Missile

**Program element:** 0605514M — Ground BASED Anti-ship Missile  
**Project:** 6637  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 4 — Advanced Component Development & Prototypes  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0605514M/6637  
**Parent:** https://hitchintel.com/programs/0605514M

## Summary

Project 6637 — Ground Based Anti-Ship Missile requests $6.5M in FY2027, 40% of the $16.3M requested for program element 0605514M, down 66% on FY2026. 1 R-2A activity decomposes the request. MCSC is the largest named R-3 performer at $0.2M, 2.8% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 39.9 |
| FY2026 | Enacted | 19.1 |
| FY2027 | Request | 6.5 |
| FY2028 | Outyear | 24.8 |
| FY2029 | Outyear | 24.2 |
| FY2030 | Outyear | 24.5 |
| FY2031 | Outyear | 25.0 |

> Estimate types are not summed. This project is one leaf of PE 0605514M; the PE total is the sum of its projects, never added to them.

## What project 6637 buys

As the Marine Corps' first Ground Based Anti-Ship Missile (GBASM) capability, the Navy/Marine Expeditionary Ship Interdiction System (NMESIS) is a force design priority central to the Marine Corps' contribution to the Naval Expeditionary Force's (NEF) surface warfare campaign. This project includes design, development, and tests of the NSM launcher, ROGUE-Fires carrier, Leader kit, Weapons Control System (WCS), and Command and Control (C2) connections to enable the transport and firing of NSMs. In FY 2026, NMESIS continued development, testing and integration of Common C4 Phase 2, M-CODE receivers, Weapon Control System (WCS), and Leader/Follower software improvements. In FY 2027, NMESIS will complete Common C4 Phase 2 and WCS improvements while continuing integration and testing of Common C4 Phase 2, M-CODE receivers, and Leader/Follower software improvements.

**R-3 lines of work:** Product Development; Support; Test and Evaluation; Management Services.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| MCSC | 0.2 | 2.8% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 1

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Navy Marine Expeditionary Ship Interdiction System (NMESIS) | 39.9 | 19.1 | 6.5 | −66% | — |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Navy Marine Expeditionary Ship Interdiction System (NMESIS)

**FY2027 planned work.** Communications ECPs: - Complete development and continue integration of Common C4 Phase 2, providing one-to-many fire control and move-shoot-move capabilities - Complete WCS improvements and continue integration Navigation ECPs: - Continue integration of Launcher M-CODE receivers - Continue integration of ROGUE-Fires M-CODE receivers - Continue Leader/Follower software improvements Testing Activities: - Conduct integrated testing of Common C4 software for one-to-many fire control - Conduct system level testing of M-CODE receivers - Conduct transportability testing to achieve certifications for broader operational transportation

**FY2026 to FY2027 change.** The decrease from FY 2026 to FY 2027 reflects the completion of Common C4 Phase 2 and WCS ECPs.

**FY2026 plans — current year.** Communications ECPs: - Continued development and integration of Common C4 Phase 2, providing one-to-many fire control and move-shoot-move capabilities - Continued Weapon Control System (WCS) improvements and integration Navigation ECPs: - Completed development and continue integration of Launcher M-CODE receivers - Completed development and continue integration of ROGUE-Fires M-CODE receivers - Began Leader/Follower software improvements Testing Activities: - Conducted integrated testing of Common C4 software for one-to-many fire control - Conducted system level testing of M-CODE receivers - Conducted transportability testing to achieve certifications for broader operational transportation - Conducted testing on improved Ordnance Handling Equipment

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0605514M.

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0605514M project 6637 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0605514M")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*